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发明名称
Beat-frequency oscillator
摘要
申请公布号
US3168711(A)
申请公布日期
1965.02.02
申请号
US19620176964
申请日期
1962.03.02
申请人
HEWLETT-PACKARD COMPANY
发明人
CRAWFORD RICHARD DAVID
分类号
H03B21/02
主分类号
H03B21/02
代理机构
代理人
主权项
地址
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